CVE-2026-42169 (GCVE-0-2026-42169)

Vulnerability from cvelistv5 – Published: 2026-08-04 03:15 – Updated: 2026-08-05 15:21
VLAI
Title
Gimp: gimp apng loader heap-buffer-overflow when fctl width exceeds ihdr width (file-png.c)
Summary
A heap-buffer-overflow vulnerability exists in the APNG (Animated PNG) file loader of GIMP. This flaw occurs when the `fcTL` width exceeds the `IHDR` width, leading to pixel data being written past the end of a heap allocation. Additionally, a heap-based buffer overflow exists in the DDS plug-in due to a BPP mismatch in the `load_layer()` function. Both vulnerabilities can be triggered by opening a specially crafted image file, potentially leading to code execution.
Severity
7.3 (High)
CVSS:3.1/AV:L/AC:L/PR:L/UI:R/S:U/C:H/I:H/A:H
SSVC
Exploitation: none Automatable: no Technical Impact: total
CISA Coordinator (v2.0.3)
CWE
  • CWE-131 - Incorrect Calculation of Buffer Size
Assigner
References
URL Tags
https://access.redhat.com/errata/RHSA-2026:50817 vendor-advisoryx_refsource_REDHAT
https://access.redhat.com/security/cve/CVE-2026-42169 vdb-entryx_refsource_REDHAT
https://bugzilla.redhat.com/show_bug.cgi?id=2461725 issue-trackingx_refsource_REDHAT
Impacted products
Vendor Product Version
Red Hat Red Hat Enterprise Linux 9 Unaffected: 2:3.0.4-4.el9_8.9 , < * (rpm)
    cpe:/a:redhat:enterprise_linux:9::appstream
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Red Hat Red Hat Enterprise Linux 6     cpe:/o:redhat:enterprise_linux:6
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Red Hat Red Hat Enterprise Linux 7     cpe:/o:redhat:enterprise_linux:7
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Red Hat Red Hat Enterprise Linux 8     cpe:/o:redhat:enterprise_linux:8
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Date Public
2026-08-04 00:20
Credits
Red Hat would like to thank Rakan Alotaibi (@hxteam) for reporting this issue.
Show details on NVD website
To clipboard 

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Sightings

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  • Seen: The vulnerability was mentioned, discussed, or observed by the user.
  • Confirmed: The vulnerability has been validated from an analyst's perspective.
  • Published Proof of Concept: A public proof of concept is available for this vulnerability.
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